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Technology is the application of knowledge to reach practical goals in a specifiable and reproducible way. The word ''technology'' may also mean the product of such an endeavor. The use of technology is widely prevalent in medicine, science,
industry Industry may refer to: Economics * Industry (economics), a generally categorized branch of economic activity * Industry (manufacturing), a specific branch of economic activity, typically in factories with machinery * The wider industrial sector ...
, communication,
transport Transport (in British English), or transportation (in American English), is the intentional movement of humans, animals, and goods from one location to another. Modes of transport include air, land ( rail and road), water, cable, pipelin ...
ation, and daily life. Technologies include physical objects like utensils or machines and intangible
tools A tool is an object that can extend an individual's ability to modify features of the surrounding environment or help them accomplish a particular task. Although many animals use simple tools, only human beings, whose use of stone tools dates bac ...
such as software. Many technological advancements have led to societal changes. The earliest known technology is the stone tool, used in the
prehistoric era Prehistory, also known as pre-literary history, is the period of human history between the use of the first stone tools by hominins 3.3 million years ago and the beginning of recorded history with the invention of writing systems. The use of ...
, followed by fire use, which contributed to the growth of the human brain and the development of language in the Ice Age. The invention of the wheel in the
Bronze Age The Bronze Age is a historic period, lasting approximately from 3300 BC to 1200 BC, characterized by the use of bronze, the presence of writing in some areas, and other early features of urban civilization. The Bronze Age is the second prin ...
enabled wider travel and the creation of more complex machines. Recent technological developments, including the printing press, the telephone, and the Internet have lowered communication barriers and ushered in the knowledge economy. While technology contributes to economic development and human prosperity, it can also have negative impacts like pollution or resource depletion, or cause social harms like technological unemployment caused by
automation Automation describes a wide range of technologies that reduce human intervention in processes, namely by predetermining decision criteria, subprocess relationships, and related actions, as well as embodying those predeterminations in machines ...
. As a result, philosophical and political debates have arisen over the role and use of technology, the
ethics of technology The ethics of technology is a sub-field of ethics addressing the ethical questions specific to the Technology Age, the transitional shift in society wherein personal computers and subsequent devices provide for the quick and easy transfer of info ...
, and the mitigation of technology's potential downsides. Historical and contemporary movements like neo-Luddism and
anarcho-primitivism Anarcho-primitivism is an anarchist critique of civilization (anti-civ) that advocates a return to non-civilized ways of life through deindustrialization, abolition of the division of labor or specialization, and abandonment of large-scale organ ...
criticize technology's pervasiveness, while adherents to
transhumanism Transhumanism is a philosophical and intellectual movement which advocates the enhancement of the human condition by developing and making widely available sophisticated technologies that can greatly enhance longevity and cognition. Transhuma ...
and
techno-progressivism Techno-progressivism or tech-progressivism is a stance of active support for the convergence of technological change and social change. Techno-progressives argue that technological developments can be profoundly empowering and emancipatory w ...
actively support technological change, viewing it as emancipatory. Many negative impacts of technology can be mitigated through technological innovations like renewable energy in transportation and industry, genetically modified crops to address soil depletion, and space exploration to mitigate
global catastrophic risk A global catastrophic risk or a doomsday scenario is a hypothetical future event that could damage human well-being on a global scale, even endangering or destroying modern civilization. An event that could cause human extinction or permanen ...
s.


Etymology

''Technology'' is a term dating back to the early 17th century that meant 'systematic treatment' (from Greek , ''from τέχνη'' 'art, craft' and , 'study, knowledge').'''' It is predated in use by the Ancient Greek ''τέχνη'', used to mean 'knowledge of how to make things', which encompassed activities like
architecture Architecture is the art and technique of designing and building, as distinguished from the skills associated with construction. It is both the process and the product of sketching, conceiving, planning, designing, and constructing buildings ...
. Starting in the 19th century, continental Europeans started using the terms ''Technik'' (
German German(s) may refer to: * Germany (of or related to) **Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ge ...
) or ''technique'' (
French French (french: français(e), link=no) may refer to: * Something of, from, or related to France ** French language, which originated in France, and its various dialects and accents ** French people, a nation and ethnic group identified with Franc ...
) to refer to a 'way of doing', which included all technical arts, such as dancing, navigation, or printing, whether or not they required tools or instruments. At the time, ''Technologie'' (
German German(s) may refer to: * Germany (of or related to) **Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ge ...
and
French French (french: français(e), link=no) may refer to: * Something of, from, or related to France ** French language, which originated in France, and its various dialects and accents ** French people, a nation and ethnic group identified with Franc ...
) referred either to the academic discipline studying the "methods of arts and crafts", or to the political discipline "intended to legislate on the functions of the arts and crafts." Since the distinction between ''Technik'' and ''Technologie'' is absent in English, both were translated as ''technology''. The term was previously uncommon in English and mostly referred to the academic discipline, as in the Massachusetts Institute of Technology. In the 20th century, as a result of scientific progress and the Second Industrial Revolution, ''technology'' stopped being considered a distinct academic discipline and took on its current-day meaning: the systemic use of knowledge to practical ends.


History


Prehistoric

Tools were initially developed by
hominids The Hominidae (), whose members are known as the great apes or hominids (), are a taxonomic family of primates that includes eight extant species in four genera: '' Pongo'' (the Bornean, Sumatran and Tapanuli orangutan); ''Gorilla'' (the eas ...
through observation and trial and error. Around 2 Mya (million years ago), they learned to make the first stone tools by hammering flakes off a pebble, forming a sharp
hand axe A hand axe (or handaxe or Acheulean hand axe) is a prehistoric stone tool with two faces that is the longest-used tool in human history, yet there is no academic consensus on what they were used for. It is made from stone, usually flint or che ...
. This practice was refined 75 kya (thousand years ago) into
pressure flaking In archaeology, in particular of the Stone Age, lithic reduction is the process of fashioning stones or rocks from their natural state into tools or weapons by removing some parts. It has been intensely studied and many archaeological industr ...
, enabling much finer work. The discovery of fire was described by
Charles Darwin Charles Robert Darwin ( ; 12 February 1809 – 19 April 1882) was an English naturalist, geologist, and biologist, widely known for his contributions to evolutionary biology. His proposition that all species of life have descended fr ...
as "possibly the greatest ever made by man". Archeological, dietary, and social evidence point to "continuous
uman Uman ( uk, Умань, ; pl, Humań; yi, אומאַן) is a city located in Cherkasy Oblast in central Ukraine, to the east of Vinnytsia. Located in the historical region of the eastern Podolia, the city rests on the banks of the Umanka River ...
fire-use" at least 1.5 Mya. Fire, fueled with wood and
charcoal Charcoal is a lightweight black carbon residue produced by strongly heating wood (or other animal and plant materials) in minimal oxygen to remove all water and volatile constituents. In the traditional version of this pyrolysis process, cal ...
, allowed early humans to cook their food to increase its digestibility, improving its nutrient value and broadening the number of foods that could be eaten. The '' cooking hypothesis'' proposes that the ability to cook promoted an increase in hominid
brain size The size of the brain is a frequent topic of study within the fields of anatomy, biological anthropology, animal science and evolution. Brain size is sometimes measured by weight and sometimes by volume (via MRI scans or by skull volume). Neu ...
, though some researchers find the evidence inconclusive. Archeological evidence of
hearth A hearth () is the place in a home where a fire is or was traditionally kept for home heating and for cooking, usually constituted by at least a horizontal hearthstone and often enclosed to varying degrees by any combination of reredos (a low, ...
s was dated to 790 kya; researchers believe this is likely to have intensified human socialization and may have contributed to the emergence of language. Other technological advances made during the Paleolithic era include clothing and shelter. No consensus exists on the approximate time of adoption of either technology, but archeologists have found archeological evidence of clothing 90-120 kya and shelter 450 kya. As the Paleolithic era progressed, dwellings became more sophisticated and more elaborate; as early as 380 kya, humans were constructing temporary wood huts. Clothing, adapted from the fur and hides of hunted animals, helped humanity expand into colder regions; humans began to migrate out of Africa around 200 kya, initially moving to Eurasia.


Neolithic

The Neolithic Revolution (or ''First Agricultural Revolution'') brought about an acceleration of technological innovation, and a consequent increase in social complexity. The invention of the polished
stone axe A hand axe (or handaxe or Acheulean hand axe) is a prehistoric stone tool with two faces that is the longest-used tool in human history, yet there is no academic consensus on what they were used for. It is made from stone, usually flint or cher ...
was a major advance that allowed large-scale
forest clearance Deforestation or forest clearance is the removal of a forest or stand of trees from land that is then converted to non-forest use. Deforestation can involve conversion of forest land to farms, ranches, or urban use. The most concentrated ...
and farming. This use of polished stone axes increased greatly in the Neolithic but was originally used in the preceding Mesolithic in some areas such as Ireland.
Agriculture Agriculture or farming is the practice of cultivating plants and livestock. Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people to ...
fed larger populations, and the transition to sedentism allowed for the simultaneous raising of more children, as infants no longer needed to be carried around by nomads. Additionally, children could contribute labor to the raising of crops more readily than they could participate in hunter-gatherer activities. With this increase in population and availability of labor came an increase in labor specialization. What triggered the progression from early Neolithic villages to the first cities, such as
Uruk Uruk, also known as Warka or Warkah, was an ancient city of Sumer (and later of Babylonia) situated east of the present bed of the Euphrates River on the dried-up ancient channel of the Euphrates east of modern Samawah, Al-Muthannā, Iraq.Harm ...
, and the first civilizations, such as Sumer, is not specifically known; however, the emergence of increasingly hierarchical social structures and specialized labor, of trade and war amongst adjacent cultures, and the need for collective action to overcome environmental challenges such as irrigation, are all thought to have played a role. Continuing improvements led to the furnace and
bellows A bellows or pair of bellows is a device constructed to furnish a strong blast of air. The simplest type consists of a flexible bag comprising a pair of rigid boards with handles joined by flexible leather sides enclosing an approximately airtigh ...
and provided, for the first time, the ability to
smelt Smelt may refer to: * Smelting, chemical process * The common name of various fish: ** Smelt (fish), a family of small fish, Osmeridae ** Australian smelt in the family Retropinnidae and species ''Retropinna semoni'' ** Big-scale sand smelt ''A ...
and forge gold, copper, silver, and lead native metals found in relatively pure form in nature. The advantages of copper tools over stone, bone and wooden tools were quickly apparent to early humans, and native copper was probably used from near the beginning of Neolithic times (about 10 ka). Native copper does not naturally occur in large amounts, but copper ores are quite common and some of them produce metal easily when burned in wood or charcoal fires. Eventually, the working of metals led to the discovery of
alloys An alloy is a mixture of chemical elements of which at least one is a metal. Unlike chemical compounds with metallic bases, an alloy will retain all the properties of a metal in the resulting material, such as electrical conductivity, ductility, ...
such as
bronze Bronze is an alloy consisting primarily of copper, commonly with about 12–12.5% tin and often with the addition of other metals (including aluminium, manganese, nickel, or zinc) and sometimes non-metals, such as phosphorus, or metalloids such ...
and
brass Brass is an alloy of copper (Cu) and zinc (Zn), in proportions which can be varied to achieve different mechanical, electrical, and chemical properties. It is a substitutional alloy: atoms of the two constituents may replace each other wit ...
(about 4,000 BCE). The first use of iron alloys such as steel dates to around 1,800 BCE.


Ancient

After harnessing fire, humans discovered other forms of energy. The earliest known use of wind power is the sailing ship; the earliest record of a ship under sail is that of a Nile boat dating to around 7,000 BCE. From prehistoric times, Egyptians likely used the power of the annual
flooding of the Nile The flooding of the Nile has been an important natural cycle in Egypt since ancient times. It is celebrated by Egyptians as an annual holiday for two weeks starting August 15, known as ''Wafaa El-Nil''. It is also celebrated in the Coptic Church b ...
to irrigate their lands, gradually learning to regulate much of it through purposely built irrigation channels and "catch" basins. The ancient Sumerians in Mesopotamia used a complex system of canals and levees to divert water from the
Tigris The Tigris () is the easternmost of the two great rivers that define Mesopotamia, the other being the Euphrates. The river flows south from the mountains of the Armenian Highlands through the Syrian and Arabian Deserts, and empties into the P ...
and Euphrates rivers for irrigation. Archaeologists estimate that the wheel was invented independently and concurrently in Mesopotamia (in present-day Iraq), the Northern Caucasus ( Maykop culture), and Central Europe. Time estimates range from 5,500 to 3,000 BCE with most experts putting it closer to 4,000 BCE. The oldest artifacts with drawings depicting wheeled carts date from about 3,500 BCE. More recently, the oldest-known wooden wheel in the world was found in the
Ljubljana Marsh The Ljubljana Marsh ( sl, Ljubljansko barje), located south of Ljubljana, the capital of Slovenia, is the largest marsh in the country. It covers or 0.8% of the Slovene territory. It is administered by the municipalities of Borovnica, Brezovica ...
of Slovenia. The invention of the wheel revolutionized trade and war. It did not take long to discover that wheeled wagons could be used to carry heavy loads. The ancient Sumerians used a
potter's wheel In pottery, a potter's wheel is a machine used in the shaping (known as throwing) of clay into round ceramic ware. The wheel may also be used during the process of trimming excess clay from leather-hard dried ware that is stiff but malleable, ...
and may have invented it. A stone pottery wheel found in the city-state of Ur dates to around 3,429 BCE, and even older fragments of wheel-thrown pottery have been found in the same area. Fast (rotary) potters' wheels enabled early
mass production Mass production, also known as flow production or continuous production, is the production of substantial amounts of standardized products in a constant flow, including and especially on assembly lines. Together with job production and batc ...
of pottery, but it was the use of the wheel as a transformer of energy (through
water wheel A water wheel is a machine for converting the energy of flowing or falling water into useful forms of power, often in a watermill. A water wheel consists of a wheel (usually constructed from wood or metal), with a number of blades or bucke ...
s, windmills, and even treadmills) that revolutionized the application of nonhuman power sources. The first two-wheeled carts were derived from
travois A travois (; Canadian French, from French , a frame for restraining horses; also obsolete travoy or travoise) is a historical frame structure that was used by indigenous peoples, notably the Plains Aboriginals of North America, to drag loads ov ...
and were first used in Mesopotamia and Iran in around 3,000 BCE. The oldest known constructed roadways are the stone-paved streets of the city-state of Ur, dating to circa 4,000 BCE, and timber roads leading through the swamps of
Glastonbury, England Glastonbury (, ) is a town and civil parish in Somerset, England, situated at a dry point on the low-lying Somerset Levels, south of Bristol. The town, which is in the Mendip district, had a population of 8,932 in the 2011 census. Glastonbury ...
, dating to around the same period. The first long-distance road, which came into use around 3,500 BCE, spanned 2,400 km from the Persian Gulf to the Mediterranean Sea, but was not paved and was only partially maintained. In around 2,000 BCE, the Minoans on the Greek island of
Crete Crete ( el, Κρήτη, translit=, Modern: , Ancient: ) is the largest and most populous of the Greek islands, the 88th largest island in the world and the fifth largest island in the Mediterranean Sea, after Sicily, Sardinia, Cypru ...
built a 50 km road leading from the palace of
Gortyn Gortyn, Gortys or Gortyna ( el, Γόρτυν, , or , ) is a municipality, and an archaeological site, on the Mediterranean island of Crete away from the island's capital, Heraklion. The seat of the municipality is the village Agioi Deka. Gortyn ...
on the south side of the island, through the mountains, to the palace of Knossos on the north side of the island. Unlike the earlier road, the Minoan road was completely paved. Ancient Minoan private homes had
running water Tap water (also known as faucet water, running water, or municipal water) is water supplied through a tap, a water dispenser valve. In many countries, tap water usually has the quality of drinking water. Tap water is commonly used for drinking, ...
. A bathtub virtually identical to modern ones was unearthed at the Palace of Knossos. Several Minoan private homes also had
toilet A toilet is a piece of sanitary hardware that collects human urine and feces, and sometimes toilet paper, usually for disposal. Flush toilets use water, while dry or non-flush toilets do not. They can be designed for a sitting position pop ...
s, which could be flushed by pouring water down the drain. The ancient Romans had many public flush toilets, which emptied into an extensive
sewage system Sewerage (or sewage system) is the infrastructure that conveys sewage or surface runoff (stormwater, meltwater, rainwater) using sewers. It encompasses components such as receiving drains, manholes, pumping stations, storm overflows, and scre ...
. The primary sewer in Rome was the
Cloaca Maxima The Cloaca Maxima ( lat, Cloāca Maxima, lit. ''Greatest Sewer'') was one of the world's earliest sewage systems. Its name derives from Cloacina, a Roman goddess. Built during either the Roman Kingdom or early Roman Republic, it was construct ...
; construction began on it in the sixth century BCE and it is still in use today. The ancient Romans also had a complex system of
aqueducts Aqueduct may refer to: Structures *Aqueduct (bridge), a bridge to convey water over an obstacle, such as a ravine or valley *Navigable aqueduct, or water bridge, a structure to carry navigable waterway canals over other rivers, valleys, railw ...
, which were used to transport water across long distances. The first Roman aqueduct was built in 312 BCE. The eleventh and final ancient Roman aqueduct was built in 226 CE. Put together, the Roman aqueducts extended over 450 km, but less than 70 km of this was above ground and supported by arches.


Pre-modern

Innovations continued through the Middle Ages with the introduction of silk production (in Asia and later Europe), the
horse collar A horse collar is a part of a horse harness that is used to distribute the load around a horse's neck and shoulders when pulling a wagon or plough. The collar often supports and pads a pair of curved metal or wooden pieces, called hames, to wh ...
, and horseshoes.
Simple machine A simple machine is a mechanical device that changes the direction or magnitude of a force. In general, they can be defined as the simplest mechanisms that use mechanical advantage (also called leverage) to multiply force. Usually the term refer ...
s (such as the
lever A lever is a simple machine consisting of a beam or rigid rod pivoted at a fixed hinge, or '' fulcrum''. A lever is a rigid body capable of rotating on a point on itself. On the basis of the locations of fulcrum, load and effort, the lever is ...
, the screw, and the
pulley A pulley is a wheel on an axle or shaft that is designed to support movement and change of direction of a taut cable or belt, or transfer of power between the shaft and cable or belt. In the case of a pulley supported by a frame or shell that ...
) were combined into more complicated tools, such as the wheelbarrow,
windmill A windmill is a structure that converts wind power into rotational energy using vanes called sails or blades, specifically to mill grain (gristmills), but the term is also extended to windpumps, wind turbines, and other applications, in some p ...
s, and
clock A clock or a timepiece is a device used to measure and indicate time. The clock is one of the oldest human inventions, meeting the need to measure intervals of time shorter than the natural units such as the day, the lunar month and the ...
s. A system of universities developed and spread scientific ideas and practices, including Oxford and
Cambridge Cambridge ( ) is a university city and the county town in Cambridgeshire, England. It is located on the River Cam approximately north of London. As of the 2021 United Kingdom census, the population of Cambridge was 145,700. Cambridge becam ...
. The Renaissance era produced many innovations, including the introduction of the movable type printing press to Europe, which facilitated the communication of knowledge. Technology became increasingly influenced by science, beginning a cycle of mutual advancement.


Modern

Starting in the United Kingdom in the 18th century, the discovery of
steam power A steam engine is a heat engine that performs mechanical work using steam as its working fluid. The steam engine uses the force produced by steam pressure to push a piston back and forth inside a cylinder. This pushing force can be trans ...
set off the Industrial Revolution, which saw wide-ranging technological discoveries, particularly in the areas of
agriculture Agriculture or farming is the practice of cultivating plants and livestock. Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people to ...
, manufacturing, mining, metallurgy, and
transport Transport (in British English), or transportation (in American English), is the intentional movement of humans, animals, and goods from one location to another. Modes of transport include air, land ( rail and road), water, cable, pipelin ...
, and the widespread application of the
factory system The factory system is a method of manufacturing using machinery and division of labor. Because of the high capital cost of machinery and factory buildings, factories are typically privately owned by wealthy individuals or corporations who emplo ...
. This was followed a century later by the Second Industrial Revolution which led to rapid scientific discovery, standardization, and mass production. New technologies were developed, including
sewage systems Sewerage (or sewage system) is the infrastructure that conveys sewage or surface runoff (stormwater, meltwater, rainwater) using sewers. It encompasses components such as receiving drains, manholes, pumping stations, storm overflows, and scre ...
,
electricity Electricity is the set of physical phenomena associated with the presence and motion of matter that has a property of electric charge. Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as described ...
,
light bulbs An electric light, lamp, or light bulb is an electrical component that produces light. It is the most common form of artificial lighting. Lamps usually have a base made of ceramic, metal, glass, or plastic, which secures the lamp in the soc ...
, electric motors, railroads,
automobiles A car or automobile is a motor vehicle with wheels. Most definitions of ''cars'' say that they run primarily on roads, seat one to eight people, have four wheels, and mainly transport people instead of goods. The year 1886 is regarded as t ...
, and
airplane An airplane or aeroplane (informally plane) is a fixed-wing aircraft that is propelled forward by thrust from a jet engine, propeller, or rocket engine. Airplanes come in a variety of sizes, shapes, and wing configurations. The broad spectr ...
s. These technological advances led to significant developments in medicine, chemistry, physics, and engineering. They were accompanied by consequential social change, with the introduction of skyscrapers accompanied by rapid urbanization. Communication improved with the invention of the
telegraph Telegraphy is the long-distance transmission of messages where the sender uses symbolic codes, known to the recipient, rather than a physical exchange of an object bearing the message. Thus flag semaphore is a method of telegraphy, whereas p ...
, the telephone, the radio, and television. The 20th century brought a host of innovations. In physics, the discovery of nuclear fission in the
Atomic Age The Atomic Age, also known as the Atomic Era, is the period of history following the detonation of the first nuclear weapon, The Gadget at the ''Trinity'' test in New Mexico, on July 16, 1945, during World War II. Although nuclear chain reactio ...
led to both nuclear weapons and nuclear power.
Computers A computer is a machine that can be programmed to carry out sequences of arithmetic or logical operations (computation) automatically. Modern digital electronic computers can perform generic sets of operations known as programs. These prog ...
were invented and later shifted from analog to digital in the Digital Revolution. Information technology, particularly
optical fiber An optical fiber, or optical fibre in Commonwealth English, is a flexible, transparent fiber made by drawing glass (silica) or plastic to a diameter slightly thicker than that of a human hair. Optical fibers are used most often as a means t ...
and optical amplifiers led to the birth of the Internet, which ushered in the
Information Age The Information Age (also known as the Computer Age, Digital Age, Silicon Age, or New Media Age) is a historical period that began in the mid-20th century. It is characterized by a rapid shift from traditional industries, as established during t ...
. The Space Age began with the launch of
Sputnik 1 Sputnik 1 (; see § Etymology) was the first artificial Earth satellite. It was launched into an elliptical low Earth orbit by the Soviet Union on 4 October 1957 as part of the Soviet space program. It sent a radio signal back to Earth for ...
in 1957, and later the launch of crewed missions to the moon in the 1960s. Organized efforts to
search for extraterrestrial intelligence The search for extraterrestrial intelligence (SETI) is a collective term for scientific searches for intelligent extraterrestrial life, for example, monitoring electromagnetic radiation for signs of transmissions from civilizations on other pl ...
have used radio telescopes to detect signs of technology use, or ''
technosignature Technosignature or technomarker is any measurable property or effect that provides scientific evidence of past or present technology. Technosignatures are analogous to biosignatures, which signal the presence of life, whether intelligent or not. ...
s'', given off by alien civilizations. In medicine, new technologies were developed for diagnosis ( CT,
PET A pet, or companion animal, is an animal kept primarily for a person's company or entertainment rather than as a working animal, livestock, or a laboratory animal. Popular pets are often considered to have attractive appearances, intelligence, ...
, and
MRI Magnetic resonance imaging (MRI) is a medical imaging technique used in radiology to form pictures of the anatomy and the physiological processes of the body. MRI scanners use strong magnetic fields, magnetic field gradients, and radio waves ...
scanning), treatment (like the
dialysis machine In chemistry, dialysis is the process of separating molecules in solution by the difference in their rates of diffusion through a semipermeable membrane, such as dialysis tubing. Dialysis is a common laboratory technique that operates on the sa ...
, defibrillator, pacemaker, and a wide array of new pharmaceutical drugs), and research (like interferon cloning and DNA microarrays). Complex manufacturing and construction techniques and organizations are needed to make and maintain more modern technologies, and entire industries have arisen to develop succeeding generations of increasingly more complex tools. Modern technology increasingly relies on training and education – their designers, builders, maintainers, and users often require sophisticated general and specific training. Moreover, these technologies have become so complex that entire fields have developed to support them, including engineering, medicine, and computer science; and other fields have become more complex, such as construction, transportation, and
architecture Architecture is the art and technique of designing and building, as distinguished from the skills associated with construction. It is both the process and the product of sketching, conceiving, planning, designing, and constructing buildings ...
.


Impact

Many new technologies have had deep societal ramifications. Technologies have contributed to human welfare through increased prosperity, improved comfort and quality of life, and medical progress, but they can also disrupt existing social hierarchies, cause pollution, and harm individuals or groups. Recent years have brought about a rise in social media's cultural prominence, with potential repercussions on democracy, and economic and social life. Early on, the internet was seen as a "liberation technology" that would democratize knowledge, improve access to education, and promote democracy. Modern research has turned to investigate the internet's downsides, including disinformation, polarization, hate speech, and propaganda. Since the 1970s, technology's impact on the environment has been criticized, leading to a surge in investment in solar, wind, and other forms of
clean energy Clean may refer to: * Cleaning, the process of removing unwanted substances, such as dirt, infectious agents, and other impurities, from an object or environment * Cleanliness, the state of being clean and free from dirt Arts and media Music Al ...
. Since the invention of the wheel, technologies have helped increase humans' economic output. Past automation has both substituted and complemented labor; machines replaced humans at some lower-paying jobs (for example in agriculture), but this was compensated by the creation of new, higher-paying jobs. Studies have found that computers did not create significant net technological unemployment. Due to
artificial intelligence Artificial intelligence (AI) is intelligence—perceiving, synthesizing, and inferring information—demonstrated by machines, as opposed to intelligence displayed by animals and humans. Example tasks in which this is done include speech re ...
being far more capable than computers, and still being in its infancy, it is not known whether it will follow the same trend; the question has been debated at length among economists and policymakers. A 2017 survey found no clear consensus among economists on whether AI would increase long-term unemployment.


Philosophy

Philosophy of technology is a branch of philosophy that studies the "practice of designing and creating artifacts", and the "nature of the things so created." It emerged as a discipline over the past two centuries, and has grown "considerably" since the 1970s. The ''humanities philosophy of technology'' is concerned with the "meaning of technology for, and its impact on, society and culture". Initially, technology was seen as an extension of the human organism that replicated or amplified bodily and mental faculties. Marx framed it as a tool used by capitalists to oppress the proletariat, but believe technology would be a fundamentally liberating force once it was "freed from societal deformations". Second-wave philosophers like Ortega later shifted their focus from economics and politics to "daily life and living in a techno-material culture," arguing that technology could oppress "even the members of the bourgeoisie who were its ostensible masters and possessors." Third-stage philosophers like
Don Ihde Don Ihde (; born 1934) is an American philosopher of science and technology.Katinka Waelbers, ''Doing Good with Technologies: Taking Responsibility for the Social Role of Emerging Technologies'', Springer, 2011, p. 77. In 1979 he wrote what is ...
and
Albert Borgmann Albert Borgmann (born 1937) is a German-born American philosopher, specializing in the philosophy of technology. He was born in Freiburg, Germany, and is a professor of philosophy at the University of Montana. In 2013 Borgmann received the Golde ...
represent a turn toward de-generalization and empiricism, and considered how humans can learn to live with technology. Early scholarship on technology was split between two arguments:
technological determinism Technological determinism is a reductionist theory that assumes that a society's technology progresses by following its own internal logic of efficiency, while determining the development of the social structure and cultural values. The term is ...
, and social construction. Technological determinism is the idea that technologies cause unavoidable social changes. It usually encompasses a related argument, technological autonomy, which asserts that technological progress follows a natural progression and cannot be prevented. Social constructivists argue that technologies follow no natural progression, and are shaped by cultural values, laws, politics, and economic incentives. Modern scholarship has shifted towards an analysis of sociotechnical systems, "assemblages of things, people, practices, and meanings", looking at the value judgments that shape technology. Cultural critic Neil Postman distinguished tool-using societies from technological societies and from what he called "technopolies," societies that are dominated by an ideology of technological and scientific progress to the detriment of other cultural practices, values, and world views. Herbert Marcuse and John Zerzan suggest that technological society will inevitably deprive us of our freedom and psychological health.


Ethics

The ''ethics of technology'' is an interdisciplinary subfield of ethics that analyzes technology's ethical implications and explores ways to mitigate the potential negative impacts of new technologies. There is a broad range of ethical issues revolving around technology, from specific areas of focus affecting professionals working with technology to broader social, ethical, and legal issues concerning the role of technology in society and everyday life. Prominent debates have surrounded
genetically modified organism A genetically modified organism (GMO) is any organism whose genetic material has been altered using genetic engineering techniques. The exact definition of a genetically modified organism and what constitutes genetic engineering varies, with ...
s, the use of robotic soldiers,
algorithmic bias Algorithmic bias describes systematic and repeatable errors in a computer system that create " unfair" outcomes, such as "privileging" one category over another in ways different from the intended function of the algorithm. Bias can emerge from ...
, and the issue of aligning AI behavior with human values Technology ethics encompasses several key fields.
Bioethics Bioethics is both a field of study and professional practice, interested in ethical issues related to health (primarily focused on the human, but also increasingly includes animal ethics), including those emerging from advances in biology, med ...
looks at ethical issues surrounding biotechnologies and modern medicine, including cloning, human genetic engineering, and stem cell research.
Computer ethics Computer ethics is a part of practical philosophy concerned with how computing professionals should make decisions regarding professional and social conduct. Margaret Anne Pierce, a professor in the Department of Mathematics and Computers at G ...
focuses on issues related to computing.
Cyberethics Cyber ethics is the philosophic study of ethics pertaining to computers, encompassing user behavior and what computers are programmed to do, and how this affects individuals and society. For years, various governments have enacted regulations ...
explores internet-related issues like
intellectual property rights Intellectual property (IP) is a category of property that includes intangible creations of the human intellect. There are many types of intellectual property, and some countries recognize more than others. The best-known types are patents, cop ...
, privacy, and censorship. Nanoethics examines issues surrounding the alteration of matter at the atomic and molecular level in various disciplines including computer science, engineering, and biology. And engineering ethics deals with the professional standards of engineers, including
software engineers Software engineering is a systematic engineering approach to software development. A software engineer is a person who applies the principles of software engineering to design, develop, maintain, test, and evaluate computer software. The term ' ...
and their moral responsibilities to the public. A wide branch of technology ethics is concerned with the ethics of artificial intelligence: it includes robot ethics, which deals with ethical issues involved in the design, construction, use, and treatment of robots, as well as
machine ethics Machine ethics (or machine morality, computational morality, or computational ethics) is a part of the ethics of artificial intelligence concerned with adding or ensuring moral behaviors of man-made machines that use artificial intelligence, otherw ...
, which is concerned with ensuring the ethical behavior of artificial intelligent agents. Within the field of AI ethics, significant yet-unsolved research problems include
AI alignment In the field of artificial intelligence (AI), AI alignment research aims to steer AI systems towards their designers’ intended goals and interests. An ''aligned'' AI system advances the intended objective; a ''misaligned'' AI system is compete ...
(ensuring that AI behaviors are aligned with their creators' intended goals and interests) and the reduction of
algorithmic bias Algorithmic bias describes systematic and repeatable errors in a computer system that create " unfair" outcomes, such as "privileging" one category over another in ways different from the intended function of the algorithm. Bias can emerge from ...
. Some researchers have warned against the hypothetical risk of an
AI takeover An AI takeover is a hypothetical scenario in which an artificial intelligence (AI) becomes the dominant form of intelligence on Earth, as computer programs or robots effectively take the control of the planet away from the human species. Possibl ...
, and have advocated for the use of AI capability control in addition to AI alignment methods. Other fields of ethics have had to contend with technology-related issues, including
military ethics Ethics or moral philosophy is a branch of philosophy that "involves systematizing, defending, and recommending concepts of right and wrong behavior".''Internet Encyclopedia of Philosophy'' The field of ethics, along with aesthetics, concerns ma ...
, media ethics, and educational ethics.


Futures studies

''Futures studies'' is the systematic and interdisciplinary study of social and technological progress. It aims to quantitatively and qualitatively explore the range of plausible futures and to incorporate human values in the development of new technologies. More generally, futures researchers are interested in improving "the freedom and welfare of humankind". It relies on a thorough quantitative and qualitative analysis of past and present technological trends, and attempts to rigorously extrapolate them into the future. Science fiction is often used as a source of ideas. Futures research methodologies include survey research,
model A model is an informative representation of an object, person or system. The term originally denoted the plans of a building in late 16th-century English, and derived via French and Italian ultimately from Latin ''modulus'', a measure. Models c ...
ing, statistical analysis, and
computer simulations Computer simulation is the process of mathematical modelling, performed on a computer, which is designed to predict the behaviour of, or the outcome of, a real-world or physical system. The reliability of some mathematical models can be dete ...
.


Existential risk

Existential risk researchers analyze risks that could lead to human extinction or civilizational collapse, and look for ways to build resilience against them. Relevant research centers include the Cambridge Center for the Study of Existential Risk, and the Stanford Existential Risk Initiative. Future technologies may contribute to the risks of
artificial general intelligence Artificial general intelligence (AGI) is the ability of an intelligent agent to understand or learn any intellectual task that a human being can. It is a primary goal of some artificial intelligence research and a common topic in science fictio ...
,
biological warfare Biological warfare, also known as germ warfare, is the use of biological toxins or infectious agents such as bacteria, viruses, insects, and fungi with the intent to kill, harm or incapacitate humans, animals or plants as an act of war. B ...
, nuclear warfare, nanotechnology,
anthropogenic climate change In common usage, climate change describes global warming—the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to E ...
, global warming, or stable global
totalitarianism Totalitarianism is a form of government and a political system that prohibits all opposition parties, outlaws individual and group opposition to the state and its claims, and exercises an extremely high if not complete degree of control and regul ...
, though technologies may also help us mitigate asteroid impacts and gamma-ray bursts. In 2019 philosopher Nick Bostrom introduced the notion of a ''vulnerable world'', "one in which there is some level of technological development at which civilization almost certainly gets devastated by default", citing the risks of a pandemic caused by bioterrorists, or an
arms race An arms race occurs when two or more groups compete in military superiority. It consists of a competition between two or more states to have superior armed forces; a competition concerning production of weapons, the growth of a military, and t ...
triggered by the development of novel armaments and the loss of mutual assured destruction. He invites policymakers to question the assumptions that technological progress is always beneficial, that scientific openness is always preferable, or that they can afford to wait until a dangerous technology has been invented before they prepare mitigations.


Emerging technologies

Emerging technologies are novel technologies whose development or practical applications are still largely unrealized. They include nanotechnology,
biotechnology Biotechnology is the integration of natural sciences and engineering sciences in order to achieve the application of organisms, cells, parts thereof and molecular analogues for products and services. The term ''biotechnology'' was first used by ...
, robotics,
3D printing 3D printing or additive manufacturing is the construction of a three-dimensional object from a CAD model or a digital 3D model. It can be done in a variety of processes in which material is deposited, joined or solidified under computer ...
,
blockchain A blockchain is a type of distributed ledger technology (DLT) that consists of growing lists of records, called ''blocks'', that are securely linked together using cryptography. Each block contains a cryptographic hash of the previous block, ...
s, and
artificial intelligence Artificial intelligence (AI) is intelligence—perceiving, synthesizing, and inferring information—demonstrated by machines, as opposed to intelligence displayed by animals and humans. Example tasks in which this is done include speech re ...
. In 2005, futurist Ray Kurzweil claimed the next technological revolution would rest upon advances in genetics, nanotechnology, and robotics, with robotics being the most impactful of the three. Genetic engineering will allow far greater control over human biological nature through a process called
directed evolution Directed evolution (DE) is a method used in protein engineering that mimics the process of natural selection to steer proteins or nucleic acids toward a user-defined goal. It consists of subjecting a gene to iterative rounds of mutagenesis ...
. Some thinkers believe that this may shatter our sense of self, and have urged for renewed public debate exploring the issue more thoroughly; others fear that directed evolution could lead to eugenics or extreme social inequality. Nanotechnology will grant us the ability to manipulate matter "at the molecular and atomic scale", which could allow us to reshape ourselves and our environment in fundamental ways. Nanobots could be used within the human body to destroy cancer cells or form new body parts, blurring the line between biology and technology. Autonomous robots have undergone rapid progress, and are expected to replace humans at many dangerous tasks, including search and rescue,
bomb disposal Bomb disposal is an explosives engineering profession using the process by which hazardous explosive devices are rendered safe. ''Bomb disposal'' is an all-encompassing term to describe the separate, but interrelated functions in the milita ...
,
firefighting Firefighting is the act of extinguishing or preventing the spread of unwanted fires from threatening human lives and destroying property and the environment. A person who engages in firefighting is known as a firefighter. Firefighters typicall ...
, and war. Estimates on the advent of
artificial general intelligence Artificial general intelligence (AGI) is the ability of an intelligent agent to understand or learn any intellectual task that a human being can. It is a primary goal of some artificial intelligence research and a common topic in science fictio ...
vary, but half of machine learning experts surveyed in 2018 believe that AI will "accomplish every task better and more cheaply" than humans by 2063, and automate all human jobs by 2140. This expected technological unemployment has led to calls for increased emphasis on computer science education and debates about UBI. Political science experts predict that this could lead to a rise in extremism, while others see it as an opportunity to usher in a
post-scarcity economy Post-scarcity is a theoretical economic situation in which most goods can be produced in great abundance with minimal human labor needed, so that they become available to all very cheaply or even freely. Post-scarcity does not mean that scarc ...
.


Movements


Appropriate technology

Some segments of the 1960s hippie counterculture grew to dislike urban living and developed a preference for locally autonomous, sustainable, and decentralized technology, termed ''appropriate technology''. This later influenced hacker culture and
technopaganism Technopaganism is the merging of neopaganism and magical ritual with digital technologies. This may be through the use of technology merely as an aid, such as video conferencing for example, or it may be a worship of the technology itself. The int ...
.


Technological utopianism

Technological utopianism refers to the belief that technological development is a moral good, which can and should bring about a utopia, that is, a society in which laws, governments, and social conditions serve the needs of all its citizens. Examples of techno-utopian goals include post-scarcity economics, life extension,
mind uploading Mind uploading is a speculative process of whole brain emulation in which a brain scan is used to completely emulate the mental state of the individual in a digital computer. The computer would then run a simulation of the brain's information pr ...
,
cryonics Cryonics (from el, κρύος ''kryos'' meaning 'cold') is the low-temperature freezing (usually at ) and storage of human remains, with the speculative hope that resurrection may be possible in the future. Cryonics is regarded with skeptic ...
, and the creation of artificial
superintelligence A superintelligence is a hypothetical agent that possesses intelligence far surpassing that of the brightest and most gifted human minds. "Superintelligence" may also refer to a property of problem-solving systems (e.g., superintelligent languag ...
. Major techno-utopian movements include
transhumanism Transhumanism is a philosophical and intellectual movement which advocates the enhancement of the human condition by developing and making widely available sophisticated technologies that can greatly enhance longevity and cognition. Transhuma ...
and
singularitarianism Singularitarianism is a movement defined by the belief that a technological singularity—the creation of superintelligence—will likely happen in the medium future, and that deliberate action ought to be taken to ensure that the singularity bene ...
. The transhumanism movement is founded upon the "continued evolution of human life beyond its current human form" through science and technology, informed by "life-promoting principles and values." The movement gained wider popularity in the early 21st century. Singularitarians believe that machine superintelligence will "accelerate technological progress" by orders of magnitude and "create even more intelligent entities ever faster", which may lead to a pace of societal and technological change that is "incomprehensible" to us. This ''event horizon'' is known as the technological singularity. Major figures of techno-utopianism include Ray Kurzweil and Nick Bostrom. Techno-utopianism has attracted both praise and criticism from progressive, religious, and conservative thinkers.


Anti-technology backlash

Technology's central role in our lives has drawn concerns and backlash. The backlash against technology is not a uniform movement and encompasses many heterogeneous ideologies. The earliest known revolt against technology was
Luddism The Luddites were a secret oath-based organisation of English textile workers in the 19th century who formed a radical faction which destroyed textile machinery. The group is believed to have taken its name from Ned Ludd, a legendary weaver ...
, a pushback against early automation in textile production. Automation had resulted in a need for fewer workers, a process known as technological unemployment. Between the 1970s and 1990s, American terrorist Ted Kaczynski carried out a series of bombings across America and published the
Unabomber Manifesto ''Industrial Society and Its Future'', generally known as the ''Unabomber Manifesto'', is a 1995 anti-technology essay by Ted Kaczynski, the "Unabomber". The manifesto contends that the Industrial Revolution began a harmful process of natura ...
denouncing technology's negative impacts on nature and human freedom. The essay resonated with a large part of the American public. It was partly inspired by Jacques Ellul's ''
The Technological Society ''The Technological Society'' is a book on the subject of ''technique'' by French philosopher, theologian and sociologist Jacques Ellul. Originally published in French in 1954, it was translated into English in 1964. On technique The central c ...
''. Some subcultures, like the
off-the-grid Off-the-grid or off-grid is a characteristic of buildings and a lifestyle designed in an independent manner without reliance on one or more public utilities. The term "off-the-grid" traditionally refers to not being connected to the electrical gr ...
movement, advocate a withdrawal from technology and a return to nature. The ecovillage movement seeks to reestablish harmony between technology and nature.


Relation to science and engineering

Engineering is the process by which technology is developed. It often requires problem-solving under strict constraints. Technological development is "action-oriented", while scientific knowledge is fundamentally explanatory. Polish philosopher Henryk Skolimowski framed it like so: "science concerns itself with what , technology with what ." The direction of
causality Causality (also referred to as causation, or cause and effect) is influence by which one event, process, state, or object (''a'' ''cause'') contributes to the production of another event, process, state, or object (an ''effect'') where the ca ...
between scientific discovery and technological innovation has been debated by scientists, philosophers and policymakers. Because innovation is often undertaken at the edge of scientific knowledge, most technologies are not derived from scientific knowledge, but instead from engineering, tinkering and chance. For example, in the 1940s and 1950s, when knowledge of turbulent combustion or fluid dynamics was still crude, jet engines were invented through "running the device to destruction, analyzing what broke ..and repeating the process". Scientific explanations often follow technological developments rather than preceding them. Many discoveries also arose from pure chance, like the discovery of penicillin as a result of accidental lab contamination. Since the 1960s, the assumption that government funding of
basic research Basic research, also called pure research or fundamental research, is a type of scientific research with the aim of improving scientific theories for better understanding and prediction of natural or other phenomena. In contrast, applied researc ...
would lead to the discovery of marketable technologies has lost credibility. Probabilist Nassim Taleb argues that national research programs that implement the notions of serendipity and
convexity Convex or convexity may refer to: Science and technology * Convex lens, in optics Mathematics * Convex set, containing the whole line segment that joins points ** Convex polygon, a polygon which encloses a convex set of points ** Convex polytope ...
through frequent trial and error are more likely to lead to useful innovations than research that aims to reach specific outcomes. Despite this, modern technology is increasingly reliant on deep, domain-specific scientific knowledge. In 1979, an average of one in three patents granted in the U.S. cited the scientific literature; by 1989, this increased to an average of one citation per patent. The average was skewed upwards by patents related to the pharmaceutical industry, chemistry, and electronics. A 2021 analysis shows that patents that are based on scientific discoveries are on average 26% more valuable than equivalent non-science-based patents.


Other animal species

The use of basic technology is also a feature of non-human animal species. Tool use was once considered a defining characteristic of the genus Homo. This view was supplanted after discovering evidence of tool use among
chimpanzee The chimpanzee (''Pan troglodytes''), also known as simply the chimp, is a species of great ape native to the forest and savannah of tropical Africa. It has four confirmed subspecies and a fifth proposed subspecies. When its close relative the ...
s and other primates, dolphins, and
crow A crow is a bird of the genus '' Corvus'', or more broadly a synonym for all of ''Corvus''. Crows are generally black in colour. The word "crow" is used as part of the common name of many species. The related term "raven" is not pinned scientific ...
s. For example, researchers have observed wild chimpanzees using basic foraging tools, pestles, levers, using leaves as sponges, and tree bark or vines as probes to fish termites.
West African chimpanzee The western chimpanzee, or West African chimpanzee, (''Pan troglodytes verus'') is a Critically Endangered subspecies of the common chimpanzee. It inhabits western Africa, specifically Côte d'Ivoire, Guinea, Liberia, Mali, Senegal, Ghana, Guine ...
s use stone hammers and anvils for cracking nuts, as do
capuchin monkey The capuchin monkeys () are New World monkeys of the subfamily Cebinae. They are readily identified as the "organ grinder" monkey, and have been used in many movies and television shows. The range of capuchin monkeys includes some tropical forest ...
s of Boa Vista, Brazil. Tool use is not the only form of animal technology use; for example,
beaver dams A beaver dam or beaver impoundment is a dam built by beavers to create a pond which protects against predators such as coyotes, wolves and bears, and holds their food during winter. These structures modify the natural environment in such a way t ...
, built with wooden sticks or large stones, are a technology with "dramatic" impacts on river habitats and ecosystems.


Popular culture

Man's relationship with technology has been explored in science-fiction literature, for example in ''
Brave New World ''Brave New World'' is a Utopian and dystopian fiction#Dystopian fiction, dystopian novel by English author Aldous Huxley, written in 1931 and published in 1932. Largely set in a futuristic World State, whose citizens are environmentally engi ...
'', '' A Clockwork Orange'', ''
Nineteen Eighty-Four ''Nineteen Eighty-Four'' (also stylised as ''1984'') is a dystopian social science fiction novel and cautionary tale written by the English writer George Orwell. It was published on 8 June 1949 by Secker & Warburg as Orwell's ninth and final ...
'', Isaac Asimov's essays, and movies like '' Minority Report'', '' Total Recall'', ''
Gattaca ''Gattaca'' is a 1997 American dystopian science fiction thriller film written and directed by Andrew Niccol in his filmmaking debut. It stars Ethan Hawke and Uma Thurman with Jude Law, Loren Dean, Ernest Borgnine, Gore Vidal, and Alan Arkin appe ...
'', and ''
Inception ''Inception'' is a 2010 science fiction action film written and directed by Christopher Nolan, who also produced the film with Emma Thomas, his wife. The film stars Leonardo DiCaprio as a professional thief who steals information by infilt ...
''. It has spawned the dystopian and futuristic cyberpunk genre, which juxtaposes futuristic technology with societal collapse, dystopia or decay. See pp. 75–76. Notable cyberpunk works include William Gibson's '' Neuromancer'' novel, and movies like ''
Blade Runner ''Blade Runner'' is a 1982 science fiction film directed by Ridley Scott, and written by Hampton Fancher and David Peoples. Starring Harrison Ford, Rutger Hauer, Sean Young, and Edward James Olmos, it is an adaptation of Philip K. Dick's ...
'', and '' The Matrix''.


See also


References


Citations


Sources

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